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1. QCD coherence and correlations of particles with restricted momenta in hadronic Z decays

Author: G. ABBIENDI, C. AINSLEY, P. F. AKESSON, G. ALEXANDER, G. ANAGNOSTOU, K. J. ANDERSON, S. ASAI, D. AXEN, I. BAILEY, E. BARBERIO, T. BARILLARI, R. J. BARLOW, R. J. BATLEY, P. BECHTLE, T. BEHNKE, K. W. BELL, P. J. BELL, G. BELLA, A. BELLERIVE, G. BENELLI, S. BETHKE, O. BIEBEL, O. BOERIU, P. BOCK, M. BOUTEMEUR, R. M. BROWN, H. J. BURCKHART, S. CAMPANA, R. K. CARNEGIE, A. A. CARTER, J. R. CARTER, C. Y. CHANG, D. G. CHARLTON, A. CSILLING, S. DADO, A. DE ROECK, E. A. DE WOLF, S, K. DESCH, B. DIENES, J. DUBBERT, E. DUCHOVNI, G. DUCKECK, I. P. DUERDOTH, E. ETZION, F. FABBRI, P. FERRARI, F. FIEDLER, I. FLECK, M. FORD, A. FREY, P. GAGNON, J. W. GARY, C. GEICH GIMBEL, P. GIACOMELLI, M. GIUNTA, J. GOLDBERG, E. GROSS, J. GRUNHAUS, M. GRUW, P. O. GUNTHER, A. GUPTA, C. HAJDU, M. HAMANN, G. G. HANSON, A. HAREL, M. HAUSCHILD, C. M. HAWKES, R. HAWKINGS, R. J. HEMINGWAY, G. HERTEN, R. D. HEUER, J. C. HILL, D. HORVATH, P. IGO KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T. R. JUNK, J. KANZAKI, D. KARLEN, K. KAWAGOE, T. KAWAMOTO, R. K. KEELER, R. G. KELLOGG, B. W. KENNEDY, S. KLUTH, T. KOBAYASHI, M. KOBEL, S. KOMAMIYA, T. KRAMER, A. KRASZNAHORKAY, P. KRIEGER, J. VON KROGH, T. KUHL, M. KUPPER, G. D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S. L. LLOYD, F. K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W. MADER, S. MARCELLINI, A. J. MARTIN, T. MASHIMO, P. MATTIGM, J. MCKENNA, R. A. MCPHERSON, F. MEIJERS, W. MENGES, F. S. MERRITT, H. MES, N. MEYER, A. MICHELINI, S. MIHARA, G. MIKENBERG, D. J. MILLER, W. MOHR, T. MORI, A. MUTTER, K. NAGAI, I. NAKAMURA, H. NANJO, H. A. NEAL, R. NISIUS, S. W. O’NEALE, A. OH, M. J. OREGLIA, S. ORITO, C. PAHL, G. PASZTOR, J. R. PATER, J. E. PILCHER, J. PINFOLD, D. E. PLANE, O. POOTH, M. PRZYBYCIEN, A. QUADT, K. RABBERTZ, C. REMBSER, P. RENKEL, J. M. RONEY, Y. ROZEN, K. RUNGE, K. SACHS, T. SAEKI, E. K. G. SARKISYAN, A. D. SCHAILE, O. SCHAILE, P. SCHARFF HANSEN, J. SCHIECK, T. SCHORNER SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T. G. SHEARS, B. C. SHEN, P. SHERWOOD, A. SKUJA, A. M. SMITH, R. SOBIE, S. SOLDNER REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S. TAREM, M. TASEVSKY, R. TEUSCHER, M. A. THOMSON, E. TORRENCE, D. TOYA, P. TRAN, I. TRIGGER, Z. TROCSANYI, E. TSUR, M. F. TURNER WATSON, I. UEDA, B. UJVARI, C. F. VOLLMER, P. VANNEREM, R. VERTESI, M. VERZOCCHI, H. VOSS, J. VOSSEBELD, C. P. WARD, D. R. WARD, P. M. WATKINS, A. T. WATSON, N. K. WATSON, P. S. WELLS, T. WENGLER, N. WERMES, G. W. WILSON1, J. A. WILSON, G. WOLF, T. R. WYATT, S. YAMASHITA, D. ZER ZION, L. ZIVKOVIC, BRAIBANT, SYLVIE, CAPILUPPI, PAOLO, CIOCCA, CLAUDIA, CUFFIANI, MARCO, GIACOMELLI, GIORGIO MARIA, ROSSI, ANTONIO MARIA, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Quantum chromodynamics, Physics, Particle physics, Nuclear and High Energy Physics, Annihilation, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Lattice, Hadron, High Energy Physics::Phenomenology, Perturbative QCD, FOS: Physical sciences, Bose–Einstein correlations, HERA, Deep inelastic scattering, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, ddc:530, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Particle Physics - Experiment
Abstract: QCD coherence effects are studied based on measurements of correlations of particles with either restricted transverse momenta, pT, Comment: 17 pages, 4 figures, Submitted to Phys. Letts. B
Published: 2006
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2. Search for radions at LEP2

Author: S. Yamashita, P. Igo-Kemenes, A. D. Schaile, K. Ishii, H. Jeremie, Gabriella Pasztor, P. Vannerem, H. Voss, D. E. Plane, O. Schaile, T. Kuhl, G. Giacomelli, Pamela Ferrari, P. Scharff-Hansen, C. P. Ward, S. Söldner-Rembold, P. Tran, Yoram Rozen, Matthias Schröder, D. Axen, R. M. Brown, A. De Roeck, M. Kobel, Lorne Levinson, I. R. Bailey, Ehud Duchovni, Oana Elena Vickey Boeriu, F. Spano, Kiyotomo Kawagoe, A. Gupta, A. Csilling, Frans Meijers, Junichi Kanzaki, Graham Wilson, J. Ludwig, T. Schörner-Sadenius, K. Runge, D. J. Miller, P. Bock, T. Kobayashi, A. Ludwig, J. Goldberg, C. Y. Chang, John Hill, Achim Stahl, B. C. Shen, Alain Bellerive, Daniel Lellouch, Shlomo Dado, D. R. Ward, A. M. Smith, Takehiko Mori, M. Donkers, Arnulf Quadt, P. M. Watkins, Siegfried Bethke, M. Przybycień, S. Campana, G. Anagnostou, N. K. Watson, A. A. Carter, George Lafferty, T. Behnke, A. J. Martin, Christoph Rembser, Satoshi Mihara, J. W. Gary, Klaus Rabbertz, Teresa Barillari, H. Landsman, P. Renkel, Gunter Wolf, M. Verzocchi, Stephen Lloyd, Andris Skuja, P. F. Åkesson, Giovanni Abbiendi, C. Ainsley, A. M. Rossi, Raimund Ströhmer, D. Karlen, Marek Tasevsky, Frank Fiedler, B. Dienes, Dezso Horvath, M. J. Oreglia, A. Michelini, P. Mättig, E. L. Barberio, Shoji Asai, P. Gagnon, Gianni Masetti, R. J. Hemingway, S. Braibant, J. Dubbert, R. K. Carnegie, J. Allison, Tetsuro Mashimo, M. F. Turner-Watson, J. Lillich, B. W. Kennedy, Tara Shears, Zoltan Laszlo Trocsanyi, P. Jovanovic, Claudia Ciocca, J. A. Wilson, K. Sachs, L. Zivkovic, C. Pahl, Peter Krieger, Dave Charlton, Philip Bechtle, C. F. Vollmer, Erez Etzion, Jochen Schieck, N. Meyer, Guenter Duckeck, Stefan Kluth, Shlomit Tarem, Paolo Giacomelli, R. J. Barlow, A. Mutter, J. R. Carter, M. Kupper, Richard Teuscher, Gideon Alexander, Paolo Capiluppi, M. Giunta, E. Tsur, C. M. Hawkes, W. Menges, Otmar Biebel, Isabel Marian Trigger, K. W. Bell, J. von Krogh, T. R. Wyatt, R. J. Hawkings, Tobias Kramer, James Pinfold, Alexander Oh, I. Nakamura, D. Lanske, S. W. O'Neale, Sachio Komamiya, R. D. Heuer, P. O. Günther, Gideon Bella, H. J. Burckhart, T. Saeki, K. J. Anderson, Norbert Wermes, T. Kawamoto, S. Orito, J. Grunhaus, J. M. Roney, M. Schumacher, Koichi Nagai, W. Mohr, E. A. De Wolf, P. Amaral, M. A. Thomson, E. K. U. Gross, H. Mes, I. P. Duerdoth, Eric Torrence, G. Mikenberg, R. J. Batley, P. J. Bell, H. Nanjo, M. Gruwé, Richard Nisius, Marco Cuffiani, M. Ford, A. Harel, Robert McPherson, K. D. Hoffman, Ikuo Ueda, D. M. Strom, Fabrizio Fabbri, A. Frey, J. Lu, W. F. Mader, P. S. Wells, A. T. Watson, M. Hamann, Richard Keeler, R. J. Sobie, Joost Vossebeld, Klaus Desch, T. R. Junk, M. Boutemeur, F. S. Merritt, Gregor Herten, J. A. McKenna, Christoph Geich-Gimbel, J. E. Pilcher, Thorsten Wengler, Gabriele Benelli, M. Hauschild, R. Vértesi, Gordon H. Hanson, Rolf Seuster, P. Sherwood, Oliver Pooth, R. G. Kellogg, Csaba Hajdu, Stefano Marcellini, James Letts, D. Zer-Zion, F. K. Loebinger, Ivor Fleck, Joleen Pater, Edward K. G. Sarkisyan, D. Toya, Balazs Ujvari, H. A. Neal, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Particle physics, Nuclear and High Energy Physics, High Energy Physics::Lattice, FOS: Physical sciences, Elementary particle, 01 natural sciences, 7. Clean energy, Standard Model, High Energy Physics - Experiment, symbols.namesake, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, 010306 general physics, Boson, Physics, Condensed Matter::Quantum Gases, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Hierarchy problem, Scalar boson, Higgs field, Higgs boson, symbols, High Energy Physics::Experiment, Higgs mechanism, Particle Physics - Experiment
Abstract: A new scalar resonance, called the radion, with couplings to fermions and bosons similar to those of the Higgs boson, is predicted in the framework of Randall-Sundrum models, proposed solutions to the hierarchy problem with one extra dimension. An important distinction between the radion and the Higgs boson is that the radion would couple directly to gluon pairs, and in particular its decay products would include a significant fraction of gluon jets. The radion had the same quantum numbers as the Standard Model (SM) Higgs boson, and therefore they can mix, with the resulting mass eigenstates having properties different from those of the SM Higgs boson. Existing searches for the Higgs boson are sensitive to the possible production and decay of radions and Higgs bosons in these models. For the first time, searches for the SM Higgs boson and flavour-independent and decay-mode independent searches for a neutral Higgs boson are used in combination to explore the parameter space of the Randall-Sundrum model. In the dataset recorded by the OPAL experiment at LEP, no evidence for radion or Higgs particle production was observed in any of those searches. The results are used to set limits on the radion and Higgs boson masses., Comment: 18 pages, 6 figures, Submitted to Phys. Lett. B
Published: 2005
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3. Determination of the LEP beam energy using radiative fermion-pair events

Author: Siegfried Bethke, J. W. Gary, Dezso Horvath, W. Menges, Otmar Biebel, G. W. Wilson, M. Hamann, M. Hauschild, Richard Keeler, J. Goldberg, R. J. Sobie, Joost Vossebeld, George Lafferty, Klaus Desch, Christoph Rembser, H. Landsman, W. F. Mader, Gunter Wolf, Erez Etzion, S. W. O'Neale, Stefan Kluth, Shlomit Tarem, P. O. Günther, Norbert Wermes, T. Kawamoto, M. Giunta, D. Karlen, Satoshi Mihara, P. S. Wells, P. Sherwood, Oliver Pooth, S. Orito, A. T. Watson, Alain Bellerive, E. Tsur, C. M. Hawkes, E. L. Barberio, Isabel Marian Trigger, K. W. Bell, K. J. Anderson, H. Mes, Kiyotomo Kawagoe, John Allison, A. Harel, Ikuo Ueda, D. M. Strom, J. C. Hill, J. Lu, I. P. Duerdoth, Tobias Kramer, R. J. Hemingway, Gianni Masetti, M. J. Oreglia, C. Y. Chang, Shlomo Dado, J. Lillich, Achim Stahl, S. Braibant, N. K. Watson, Sachio Komamiya, Dave Charlton, L. Zivkovic, Frank Fiedler, Thorsten Wengler, B. W. Kennedy, P. Jovanovic, J. R. Carter, D. Toya, Tara Shears, M. Przybycień, Peter Krieger, C. Ainsley, A. M. Rossi, Raimund Ströhmer, Christoph Geich-Gimbel, Giora Mikenberg, R. G. Kellogg, R. J. Batley, Gideon Alexander, J. M. Roney, A. A. Carter, Csaba Hajdu, R. D. Heuer, P. J. Bell, Stefano Marcellini, S. Yamashita, M. Schumacher, A. D. Schaile, Gabriella Pasztor, T. Saeki, James Letts, P. Vannerem, M. Verzocchi, Gideon Bella, Gabriele Benelli, P. F. Åkesson, Giovanni Abbiendi, Beatrix Dienes, Klaus Rabbertz, P. Igo-Kemenes, Stephen Lloyd, M. Tasevsky, R. Vértesi, Yoram Rozen, E. A. De Wolf, R. M. Brown, Lorne Levinson, Claudia Ciocca, T. Behnke, K. Sachs, C. P. Ward, Philip Bechtle, H. J. Burckhart, S. Söldner-Rembold, Ehud Duchovni, Alexander Oh, P. Amaral, I. R. Bailey, J. Dubbert, R. K. Carnegie, K. Ishii, H. Jeremie, A. Michelini, Arnulf Quadt, Matthias Schröder, Koichi Nagai, D. J. Miller, T. R. Junk, T. Kobayashi, K. Hoffman, A. Ludwig, Gregor Herten, W. Mohr, J. A. Wilson, Junichi Kanzaki, M. Boutemeur, F. S. Merritt, P. Gagnon, I. Nakamura, D. Lanske, D. E. Plane, P. M. Watkins, A. Mutter, Robert McPherson, D. R. Ward, Zoltan Laszlo Trocsanyi, O. Schaile, Paolo Giacomelli, Gordon H. Hanson, J. A. McKenna, T. Schörner-Sadenius, J. E. Pilcher, P. Renkel, Daniel Lellouch, T. Kuhl, P. Tran, Fabrizio Fabbri, A. Frey, Takehiko Mori, H. Nanjo, D. Zer-Zion, A. J. Martin, D. Axen, F. K. Loebinger, M. Ford, Oana Elena Vickey Boeriu, F. Spano, Ivor Fleck, P. Capiluppi, Joleen Pater, Edward K. G. Sarkisyan, J. Ludwig, K. Runge, P. Bock, M. A. Thomson, Balazs Ujvari, H. A. Neal, C. F. Vollmer, J. von Krogh, A. Gupta, Jochen Schieck, R. J. Hawkings, E. K. U. Gross, J. Grunhaus, C. Pahl, Teresa Barillari, R. J. Barlow, A. Csilling, M. Gruwé, Eric Torrence, Richard Nisius, P. Mättig, Shoji Asai, Marco Cuffiani, H. Voss, Andris Skuja, G. Giacomelli, Pamela Ferrari, A. De Roeck, M. Kobel, Tetsuro Mashimo, M. F. Turner-Watson, Frans Meijers, N. Meyer, M. Kupper, G. Anagnostou, James Pinfold, R. Seuster, P. Scharff-Hansen, Guenter Duckeck, A. M. Smith, S. Campana, Richard Teuscher, T. R. Wyatt, B. C. Shen, M. Donkers, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Physics, Particle physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Hadron, FOS: Physical sciences, Fermion, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Calibration, Radiative transfer, High Energy Physics::Experiment, Nuclear Experiment, 010306 general physics, Beam energy
Abstract: We present a determination of the LEP beam energy using "radiative return" fermion-pair events recorded at centre-of-mass energies from 183 GeV to 209 GeV. We find no evidence of a disagreement between the OPAL data and the LEP Energy Workings Group's standard calibration. Including the energy- averaged 11 MeV uncertainty in the standard determination, the beam energy we obtain from the OPAL data is higher than that obtained from the LEP calibration by 0+-34(stat.)+-27(syst.)MeV, Comment: 24 pages, 5 figures, Submitted to Phys. Letts. B
Published: 2004
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4. Measurement of <tex>\alpha_{s}$</tex> with radiative hadronic events

Author: Sachio Komamiya, M. Gruwe, A. D. Schaile, Gabriella Pasztor, P. Vannerem, M. A. Thomson, A. J. Martin, E. K. U. Gross, H. Voss, C. F. Vollmer, C. P. Ward, T. Saeki, James Pinfold, A. Quadt, R. Seuster, Jochen Schieck, S. Söldner-Rembold, R. J. Barlow, Satoru Yamashita, W. Mader, Yoram Rozen, R. Vértesi, J. Lillich, B. W. Kennedy, P. Jovanovic, M. Dallavalle, H. Landsman, T. Behnke, Graham Wilson, E. L. Barberio, Guenter Duckeck, M. Boutemeur, F. S. Merritt, Gordon H. Hanson, Peter Krieger, Shlomo Dado, Junichi Kanzaki, Tara Shears, Marco Cuffiani, P. Gagnon, J. M. Roney, S. Campana, W. Menges, Otmar Biebel, Andris Skuja, D. J. Miller, P. Igo-Kemenes, E. Tsur, C. M. Hawkes, Oliver Pooth, Tetsuro Mashimo, M. F. Turner-Watson, K. Ishii, H. Jeremie, T. R. Junk, Isabel Marian Trigger, K. W. Bell, Zoltan Laszlo Trocsanyi, Koichi Nagai, Daniel Lellouch, W. Mohr, P. J. Bell, Gunter Wolf, Gregor Herten, Takehiko Mori, J. C. Hill, C. Pahl, N. Meyer, A. Mutter, Alexander Oh, M. Kupper, Tobias Kramer, Matthias Schröder, O. Schaile, H. Mes, Dave Charlton, I. P. Duerdoth, D. Axen, I. Nakamura, R. G. Kellogg, T. Kuhl, B. C. Shen, Oana Elena Vickey Boeriu, D. Lanske, Csaba Hajdu, Peter Sherwood, J. A. McKenna, J. E. Pilcher, Siegfried Bethke, Stefano Marcellini, James Letts, J. Ludwig, P. Scharff-Hansen, R. K. Keeler, H. Nanjo, J. W. Gary, K. Runge, P. Bock, D. Karlen, Richard Teuscher, Teresa Barillari, G. Mikenberg, M. Hauschild, R. D. Heuer, A. Csilling, Marek Tasevsky, T. Schörner-Sadenius, D. Zer-Zion, P. M. Watkins, Dezso Horvath, F. K. Loebinger, Gideon Bella, A. M. Smith, Ehud Duchovni, T. R. Wyatt, H. J. Burckhart, P. Renkel, Ivor Fleck, Thorsten Wengler, Joleen Pater, Norbert Wermes, P. Mättig, R. J. Batley, T. Kawamoto, Shoji Asai, Edward K. G. Sarkisyan, D. Toya, J. Grunhaus, Balazs Ujvari, H. A. Neal, M. Schumacher, Gabriele Benelli, J. Goldberg, S. Orito, E. A. De Wolf, L. Zivkovic, Christoph Rembser, Christoph Geich-Gimbel, M. J. Oreglia, S. W. O'Neale, S. Braibant, Erez Etzion, Stefan Kluth, Shlomit Tarem, A. Krasznahorkay, M. Giunta, A. Michelini, Francesco Spanò, K. J. Anderson, Raimund Ströhmer, T. Kobayashi, A. Ludwig, E. Torrence, A. Gupta, Kiyotomo Kawagoe, Beatrix Dienes, C. Y. Chang, R. M. Brown, Lorne Levinson, I. R. Bailey, D. E. Plane, Alan Watson, Gideon Alexander, Paolo Capiluppi, Klaus Rabbertz, Stephen Lloyd, N. K. Watson, D. R. Ward, C. Ainsley, A. M. Rossi, George Lafferty, Satoshi Mihara, Frank Fiedler, Claudia Ciocca, M. Przybycień, K. Sachs, J. R. Carter, Philip Bechtle, A. A. Carter, Robert McPherson, Fabrizio Fabbri, A. Frey, M. Verzocchi, P. F. Åkesson, Giovanni Abbiendi, Paolo Giacomelli, Alain Bellerive, J. Dubbert, R. K. Carnegie, J. A. Wilson, G. Anagnostou, Pamela Ferrari, M. Ford, J. von Krogh, G. Giacomelli, R. J. Hawkings, A. De Roeck, M. Kobel, Frans Meijers, Achim Stahl, P. S. Wells, A. Harel, Ikuo Ueda, D. M. Strom, J. Lu, M. Hamann, R. J. Sobie, Joost Vossebeld, Klaus Desch, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Particle physics, Photon, Physics and Astronomy (miscellaneous), Hadron, FOS: Physical sciences, Fizikai tudományok, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Természettudományok, 0103 physical sciences, Radiative transfer, 010306 general physics, Engineering (miscellaneous), QC, Quantum chromodynamics, Physics, 010308 nuclear & particles physics, High Energy Physics::Phenomenology, Photon radiation, Observable, Strong coupling, High Energy Physics::Experiment, Event (particle physics), Particle Physics - Experiment
Abstract: Hadronic final states with a hard isolated photon are studied using data taken at centre-of-mass energies around the mass of the Z0 boson with the OPAL detector at LEP. The strong coupling alpha S is extracted by comparing data and QCD predictions for event shape observables at average reduced centre-of-mass energies ranging from 24 GeV to 78 GeV, and the energy dependence of alpha S is studied. Our results are consistent with the running of alpha S as predicted by QCD and show that within the uncertainties of our analysis event shapes in hadronic Z0 decays with hard and isolated photon radiation can be described by QCD at reduced centre-of-mass energies. Combining all values from different event shape observables and energies gives alpha S (Mz)=0.1182 pm 0.0015(stat.) pm 0.0101(syst.)., Comment: No of pages 31 - No of figures 10
Published: 2008

5. Measurement of the e+e- -> W+W- cross section and W decay branching fractions at LEP

Author: J. Grunhaus, A. Mutter, Sachio Komamiya, M. Gruwe, T. Saeki, P. Igo-Kemenes, M. Boutemeur, F. S. Merritt, K. Ishii, H. Jeremie, Tara Shears, J. A. McKenna, O. Schaile, Dave Charlton, T. Kuhl, Christoph Geich-Gimbel, M. Schumacher, J. Dubbert, R. K. Carnegie, E. Tsur, C. M. Hawkes, J. A. Wilson, Teresa Barillari, M. Hamann, E. A. De Wolf, A. D. Schaile, Isabel Marian Trigger, K. W. Bell, J. C. Hill, Pamela Ferrari, A. J. Martin, Richard Keeler, Gabriella Pasztor, P. Vannerem, Tobias Kramer, B. C. Shen, Siegfried Bethke, L. Zivkovic, R. J. Sobie, M. Ford, R. D. Heuer, Joost Vossebeld, C. P. Ward, B. Dienes, Klaus Desch, M. A. Thomson, S. Söldner-Rembold, P. Mättig, Gideon Alexander, Gideon Bella, J. W. Gary, Paolo Capiluppi, J. von Krogh, E. K. U. Gross, H. Voss, H. Mes, W. Mader, R. J. Hawkings, I. P. Duerdoth, Satoru Yamashita, H. J. Burckhart, Shoji Asai, Daniel Lellouch, P. J. Bell, P. S. Wells, Shlomo Dado, Ehud Duchovni, Matthias Schröder, M. Przybycień, A. T. Watson, J. Goldberg, Takehiko Mori, A. A. Carter, Achim Stahl, G. Mikenberg, D. J. Miller, J. M. Roney, Kiyotomo Kawagoe, A. Harel, Ikuo Ueda, D. M. Strom, J. Lu, A. Michelini, Koichi Nagai, M. Cuffiani, M. Verzocchi, P. F. Åkesson, Giovanni Abbiendi, W. Mohr, J. Lillich, B. W. Kennedy, R. J. Batley, H. Nanjo, D. Axen, T. Kobayashi, A. Ludwig, P. Jovanovic, Oana Elena Vickey Boeriu, Robert McPherson, Peter Krieger, T. Schörner-Sadenius, Raimund Ströhmer, D. R. Ward, Peter Sherwood, C. Pahl, George Lafferty, Christoph Rembser, G. Anagnostou, T. Behnke, James Pinfold, Satoshi Mihara, Paolo Giacomelli, Fabrizio Fabbri, A. Quadt, R. Seuster, A. Frey, T. R. Junk, Guenter Duckeck, J. Ludwig, K. Runge, E. Torrence, A. Gupta, A. Csilling, Gunter Wolf, Frank Fiedler, Gregor Herten, P. Bock, Klaus Rabbertz, S. Campana, Stephen Lloyd, D. Karlen, M. Dallavalle, H. Landsman, P. Scharff-Hansen, G. Giacomelli, P. Gagnon, Yoram Rozen, A. De Roeck, M. Kobel, J. E. Pilcher, P. M. Watkins, A. M. Smith, Frans Meijers, S. W. O'Neale, Andris Skuja, Junichi Kanzaki, G. W. Wilson, M. Hauschild, Tetsuro Mashimo, Zoltan Laszlo Trocsanyi, M. F. Turner-Watson, R. M. Brown, Lorne Levinson, Francesco Spanò, W. Menges, Otmar Biebel, N. Meyer, M. Kupper, E. L. Barberio, K. J. Anderson, Richard Teuscher, I. R. Bailey, Erez Etzion, Thorsten Wengler, Stefan Kluth, Shlomit Tarem, C. Y. Chang, D. E. Plane, M. Giunta, T. R. Wyatt, Gabriele Benelli, Norbert Wermes, T. Kawamoto, S. Orito, M. J. Oreglia, S. Braibant, A. Krasznahorkay, J. R. Carter, P. Renkel, Claudia Ciocca, K. Sachs, Philip Bechtle, Alain Bellerive, Marek Tasevsky, Dezso Horvath, N. K. Watson, Oliver Pooth, C. Ainsley, A. M. Rossi, Alexander Oh, R. G. Kellogg, Csaba Hajdu, Stefano Marcellini, I. Nakamura, D. Lanske, James Letts, R. Vértesi, Gordon H. Hanson, C. F. Vollmer, Jochen Schieck, R. J. Barlow, D. Zer-Zion, F. K. Loebinger, Ivor Fleck, Joleen Pater, Edward K. G. Sarkisyan, D. Toya, Balazs Ujvari, H. A. Neal, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Branching fraction, Cabibbo–Kobayashi–Maskawa matrix, Electron–positron annihilation, Hadron, Fizikai tudományok, 01 natural sciences, High Energy Physics - Experiment, Nuclear physics, Pair production, Természettudományok, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Charged current, Lepton, Event generator
Abstract: From a total data sample of 701.1 pb^-1 recorded with e+e- centre-of-mass energies of sqrt = 161-209 GeV with the OPAL detector at LEP, 11693 W-pair candidate events are selected. These data are used to obtain measurements of the W-pair production cross sections at 10 different centre-of-mass energies. The ratio of the measured cross sections to the Standard Model expectation is found to be: data/SM = 1.002 +- 0.011(stat.) +- 0.007(syst.) +- 0.005(theory), where the uncertainties are statistical, experimental systematics and theory systematics respectively. The data are used to determine the W boson branching fractions, which are found to be consistent with lepton universality of the charged current interaction. Assuming lepton universality, the branching ratio to hadrons is determined to be 67.41 +- 0.37(stat.) +- 0.23(syst.)%, from which the CKM matrix element Vcs is determined to be 0.96+-0.017(stat.)+-0.012(syst.). The differential cross section as a function of the W^- production angle is measured for the qqev and qqmv final states. The results described in this paper are consistent with the expectations from the Standard Model., Comment: 23 pages, 5 figures, Submitted to Eur Phys J.C
Published: 2007

6. Bose-Einstein study of position-momentum correlations of charged pions in hadronic Z0 decays

Author: A. Mutter, Richard Teuscher, S. W. O'Neale, Erez Etzion, Oliver Pooth, Francesco Spanò, M. Hauschild, Stefan Kluth, Shlomit Tarem, Gideon Bella, H. J. Burckhart, K. J. Anderson, D. Axen, Oana Elena Vickey Boeriu, Matthias Schröder, B. C. Shen, T. R. Wyatt, E. Torrence, A. Gupta, W. Menges, Otmar Biebel, Peter Sherwood, R. G. Kellogg, P. Scharff-Hansen, Csaba Hajdu, D. E. Plane, G. M. Dallavalle, J. Ludwig, K. Runge, P. Bock, M. Giunta, Siegfried Bethke, Raimund Ströhmer, Stefano Marcellini, T. Behnke, Thorsten Wengler, James Letts, R. Vértesi, A. M. Smith, J. W. Gary, Lorne Levinson, I. R. Bailey, S. Campana, Gordon H. Hanson, J. Grunhaus, Christoph Geich-Gimbel, G. Anagnostou, Graham Wilson, J. Goldberg, M. Ford, P. M. Watkins, Norbert Wermes, P. Igo-Kemenes, Marek Tasevsky, Dezso Horvath, T. Kawamoto, N. K. Watson, T. Schörner-Sadenius, Teresa Barillari, M. Schumacher, Gabriele Benelli, J. von Krogh, K. Ishii, H. Jeremie, D. Zer-Zion, A. Csilling, P. J. Bell, F. K. Loebinger, Beatrix Dienes, Ivor Fleck, S. Orito, Sachio Komamiya, Andris Skuja, P. Renkel, M. Gruwe, Dave Charlton, Robert McPherson, R. J. Hawkings, E. A. De Wolf, Joleen Pater, Edward K. G. Sarkisyan, D. Toya, Pamela Ferrari, Balazs Ujvari, H. A. Neal, A. J. Martin, P. Gagnon, Kiyotomo Kawagoe, T. Saeki, Shlomo Dado, Fabrizio Fabbri, A. Frey, L. Zivkovic, M. Cuffiani, Tetsuro Mashimo, M. F. Turner-Watson, P. Mättig, H. Nanjo, A. Harel, Guenter Duckeck, C. Ainsley, T. R. Junk, C. F. Vollmer, C. Y. Chang, N. Meyer, Zoltan Laszlo Trocsanyi, J. Dubbert, Shoji Asai, R. K. Carnegie, O. Schaile, Gregor Herten, E. Tsur, C. M. Hawkes, J. A. Wilson, M. Boutemeur, F. S. Merritt, Isabel Marian Trigger, K. W. Bell, Christoph Rembser, Ikuo Ueda, D. M. Strom, H. Mes, I. P. Duerdoth, A. M. Rossi, M. J. Oreglia, Jochen Schieck, R. D. Heuer, S. Braibant, A. Krasznahorkay, W. Mader, M. Kupper, Daniel Lellouch, J. Lu, T. Kuhl, Gunter Wolf, J. C. Hill, Tobias Kramer, Takehiko Mori, R. J. Barlow, J. R. Carter, J. E. Pilcher, J. A. McKenna, G. Mikenberg, D. Karlen, C. Pahl, Tara Shears, M. Przybycień, A. A. Carter, R. J. Batley, James Pinfold, A. Quadt, R. Seuster, Alain Bellerive, G. Giacomelli, M. Verzocchi, R. M. Brown, P. F. Åkesson, Giovanni Abbiendi, M. Hamann, A. De Roeck, M. Kobel, Richard Keeler, Alexander Oh, Yoram Rozen, Frans Meijers, R. J. Sobie, I. Nakamura, D. Lanske, Joost Vossebeld, Junichi Kanzaki, A. D. Schaile, Gabriella Pasztor, Klaus Desch, P. Vannerem, C. P. Ward, Claudia Ciocca, S. Söldner-Rembold, K. Sachs, Philip Bechtle, P. S. Wells, A. T. Watson, M. A. Thomson, E. K. U. Gross, H. Voss, Satoru Yamashita, J. M. Roney, Koichi Nagai, W. Mohr, Paolo Giacomelli, J. Lillich, B. W. Kennedy, P. Jovanovic, Peter Krieger, Achim Stahl, D. J. Miller, H. Landsman, Klaus Rabbertz, Stephen Lloyd, Ehud Duchovni, A. Michelini, T. Kobayashi, A. Ludwig, D. R. Ward, George Lafferty, Satoshi Mihara, Gideon Alexander, E. L. Barberio, Paolo Capiluppi, Frank Fiedler, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Particle physics, Physics and Astronomy (miscellaneous), Electron–positron annihilation, Hadron, FOS: Physical sciences, Fizikai tudományok, 01 natural sciences, law.invention, High Energy Physics - Experiment, Nuclear physics, Momentum, High Energy Physics - Experiment (hep-ex), Pion, Természettudományok, Position (vector), law, 0103 physical sciences, Rapidity, ddc:530, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Physics, 010308 nuclear & particles physics, 3. Good health, Transverse plane, Particle Physics - Experiment, Bose–Einstein condensate
Abstract: A study of Bose-Einstein correlations in pairs of identically charged pions produced in e+e- annihilations at the Z0 peak has been performed for the first time assuming a non-static emitting source. The results are based on the high statistics data obtained with the OPAL detector at LEP. The correlation functions have been analyzed in intervals of the average pair transverse momentum and of the pair rapidity, in order to study possible correlations between the pion production points and their momenta (position-momentum correlations). The Yano-Koonin and the Bertsch-Pratt parameterizations have been fitted to the measured correlation functions to estimate the geometrical parameters of the source as well as the velocity of the source elements with respect to the overall centre-of-mass frame. The source rapidity is found to scale approximately with the pair rapidity, and both the longitudinal and transverse source dimensions are found to decrease for increasing average pair transverse momenta., 25 pages, 10 figures, Submitted to Eur Phys J.C
Published: 2007
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7. Inclusive production of charged hadrons in photon-photon collisions

Author: G. ABBIENDI, C. AINSLEY, P. F. AKESSON, G. ALEXANDER, G. ANAGNOSTOU, K. J. ANDERSON, S. ASAI, D. AXEN, I. BAILEY, E. BARBERIO, T. BARILLARI, R. J. BARLOW, R. J. BATLEY, P. BECHTLE, T. BEHNKE, K. W. BELL, P. J. BELL, G. BELLA, A. BELLERIVE, G. BENELLI, S. BETHKE, O. BIEBEL, O. BOERIU, P. BOCK, M. BOUTEMEUR, R. M. BROWN, H. J. BURCKHART, S. CAMPANA, R. K. CARNEGIE, A. A. CARTER, J. R. CARTER, C. Y. CHANG, D. G. CHARLTON, C. CIOCCA, A. CSILLING, S. DADO, A. DE ROECK, E. A. DE WOLF, S, K. DESCH, B. DIENES, J. DUBBERT, E. DUCHOVNI, G. DUCKECK, I. P. DUERDOTH, E. ETZION, F. FABBRI, P. FERRARI, F. FIEDLER, I. FLECK, M. FORD, A. FREY, P. GAGNON, J. W. GARY, C. GEICH GIMBEL, P. GIACOMELLI, M. GIUNTA, J. GOLDBERG, E. GROSS, J. GRUNHAUS, M. GRUW, P. O. GUNTHER, A. GUPTA, C. HAJDU, M. HAMANN, G. G. HANSON, A. HAREL, M. HAUSCHILD, C. M. HAWKES, R. HAWKINGS, R. J. HEMINGWAY, G. HERTEN, R. D. HEUER, J. C. HILL, D. HORVATH, P. IGO KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T. R. JUNK, J. KANZAKI, D. KARLEN, K. KAWAGOE, T. KAWAMOTO, R. K. KEELER, R. G. KELLOGG, B. W. KENNEDY, S. KLUTH, T. KOBAYASHI, M. KOBEL, S. KOMAMIYA, T. KRAMER, A. KRASZNAHORKAY, P. KRIEGER, J. VON KROGH, T. KUHL, M. KUPPER, G. D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S. L. LLOYD, F. K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W. MADER, S. MARCELLINI, A. J. MARTIN, T. MASHIMO, P. MATTIGM, J. MCKENNA, R. A. MCPHERSON, F. MEIJERS, W. MENGES, F. S. MERRITT, H. MES, N. MEYER, A. MICHELINI, S. MIHARA, G. MIKENBERG, D. J. MILLER, W. MOHR, T. MORI, A. MUTTER, K. NAGAI, I. NAKAMURA, H. NANJO, H. A. NEAL, R. NISIUS, S. W. O’NEALE, A. OH, M. J. OREGLIA, S. ORITO, C. PAHL, G. PASZTOR, J. R. PATER, J. E. PILCHER, J. PINFOLD, D. E. PLANE, O. POOTH, M. PRZYBYCIEN, A. QUADT, K. RABBERTZ, C. REMBSER, P. RENKEL, J. M. RONEY, Y. ROZEN, K. RUNGE, K. SACHS, T. SAEKI, E. K. G. SARKISYAN, A. D. SCHAILE, O. SCHAILE, P. SCHARFF HANSEN, J. SCHIECK, T. SCHORNER SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T. G. SHEARS, B. C. SHEN, P. SHERWOOD, A. SKUJA, A. M. SMITH, R. SOBIE, S. SOLDNER REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S. TAREM, M. TASEVSKY, R. TEUSCHER, M. A. THOMSON, E. TORRENCE, D. TOYA, P. TRAN, I. TRIGGER, Z. TROCSANYI, E. TSUR, M. F. TURNER WATSON, I. UEDA, B. UJVARI, C. F. VOLLMER, P. VANNEREM, R. VERTESI, M. VERZOCCHI, H. VOSS, J. VOSSEBELD, C. P. WARD, D. R. WARD, P. M. WATKINS, A. T. WATSON, N. K. WATSON, P. S. WELLS, T. WENGLER, N. WERMES, G. W. WILSON1, J. A. WILSON, G. WOLF, T. R. WYATT, S. YAMASHITA, D. ZER ZION, L. ZIVKOVIC, BRAIBANT, SYLVIE, CAPILUPPI, PAOLO, CUFFIANI, MARCO, GIACOMELLI, GIORGIO MARIA, ROSSI, ANTONIO MARIA, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Hadron, High Energy Physics::Phenomenology, FOS: Physical sciences, Fizikai tudományok, 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Természettudományok, Pseudorapidity, 0103 physical sciences, Transverse momentum, Strong coupling, Production (computer science), High Energy Physics::Experiment, ddc:530, 010306 general physics, Nuclear Experiment, Particle Physics - Experiment
Abstract: The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass energies from 183 to 209 GeV. The differential cross-sections as a function of the transverse momentum and the pseudorapidity of the hadrons are compared to theoretical calculations of up to next-to-leading order (NLO) in the strong coupling constant alpha{s}. The data are also compared to a measurement by the L3 Collaboration, in which a large deviation from the NLO predictions is observed., 20 pages, 4 figures, Submitted to Phys. Letts. B
Published: 2007
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8. Measurement of the running of the QED coupling in small-angle Bhabha scattering at LEP

Author: G. ABBIENDI, C. AINSLEY, P. F. AKESSON, G. ALEXANDER, G. ANAGNOSTOU, K. J. ANDERSON, S. ASAI, D. AXEN, I. BAILEY, E. BARBERIO, T. BARILLARI, R. J. BARLOW, R. J. BATLEY, P. BECHTLE, T. BEHNKE, K. W. BELL, P. J. BELL, G. BELLA, A. BELLERIVE, G. BENELLI, S. BETHKE, O. BIEBEL, O. BOERIU, P. BOCK, M. BOUTEMEUR, S. BRAIBANT, R. M. BROWN, H. J. BURCKHART, S. CAMPANA, R. K. CARNEGIE, A. A. CARTER, J. R. CARTER, C. Y. CHANG, D. G. CHARLTON, A. CSILLING, S. DADO, A. DE ROECK, E. A. DE WOLF, S, K. DESCH, B. DIENES, J. DUBBERT, E. DUCHOVNI, G. DUCKECK, I. P. DUERDOTH, E. ETZION, F. FABBRI, P. FERRARI, F. FIEDLER, I. FLECK, M. FORD, A. FREY, P. GAGNON, J. W. GARY, C. GEICH GIMBEL, P. GIACOMELLI, M. GIUNTA, J. GOLDBERG, E. GROSS, J. GRUNHAUS, M. GRUW, P. O. GUNTHER, A. GUPTA, C. HAJDU, M. HAMANN, G. G. HANSON, A. HAREL, M. HAUSCHILD, C. M. HAWKES, R. HAWKINGS, R. J. HEMINGWAY, G. HERTEN, R. D. HEUER, J. C. HILL, D. HORVATH, P. IGO KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T. R. JUNK, J. KANZAKI, D. KARLEN, K. KAWAGOE, T. KAWAMOTO, R. K. KEELER, R. G. KELLOGG, B. W. KENNEDY, S. KLUTH, T. KOBAYASHI, M. KOBEL, S. KOMAMIYA, T. KRAMER, A. KRASZNAHORKAY, P. KRIEGER, J. VON KROGH, T. KUHL, M. KUPPER, G. D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S. L. LLOYD, F. K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W. MADER, S. MARCELLINI, A. J. MARTIN, T. MASHIMO, P. MATTIGM, J. MCKENNA, R. A. MCPHERSON, F. MEIJERS, W. MENGES, F. S. MERRITT, H. MES, N. MEYER, A. MICHELINI, S. MIHARA, G. MIKENBERG, D. J. MILLER, W. MOHR, T. MORI, A. MUTTER, K. NAGAI, I. NAKAMURA, H. NANJO, H. A. NEAL, R. NISIUS, S. W. O’NEALE, A. OH, M. J. OREGLIA, S. ORITO, C. PAHL, G. PASZTOR, J. R. PATER, J. E. PILCHER, J. PINFOLD, D. E. PLANE, O. POOTH, M. PRZYBYCIEN, A. QUADT, K. RABBERTZ, C. REMBSER, P. RENKEL, J. M. RONEY, Y. ROZEN, K. RUNGE, K. SACHS, T. SAEKI, E. K. G. SARKISYAN, A. D. SCHAILE, O. SCHAILE, P. SCHARFF HANSEN, J. SCHIECK, T. SCHORNER SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T. G. SHEARS, B. C. SHEN, P. SHERWOOD, A. SKUJA, A. M. SMITH, R. SOBIE, S. SOLDNER REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S. TAREM, M. TASEVSKY, R. TEUSCHER, M. A. THOMSON, E. TORRENCE, D. TOYA, P. TRAN, I. TRIGGER, Z. TROCSANYI, E. TSUR, M. F. TURNER WATSON, I. UEDA, B. UJVARI, C. F. VOLLMER, P. VANNEREM, R. VERTESI, M. VERZOCCHI, H. VOSS, J. VOSSEBELD, C. P. WARD, D. R. WARD, P. M. WATKINS, A. T. WATSON, N. K. WATSON, P. S. WELLS, T. WENGLER, N. WERMES, G. W. WILSON1, J. A. WILSON, G. WOLF, T. R. WYATT, S. YAMASHITA, D. ZER ZION, L. ZIVKOVIC, CAPILUPPI, PAOLO, CIOCCA, CLAUDIA, CUFFIANI, MARCO, GIACOMELLI, GIORGIO MARIA, ROSSI, ANTONIO MARIA, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Coupling, Physics, Particle physics, Range (particle radiation), Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Momentum transfer, Detector, Alpha (ethology), FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Ideal (ring theory), 010306 general physics, Constant (mathematics), Engineering (miscellaneous), Particle Physics - Experiment, Bhabha scattering
Abstract: Using the OPAL detector at LEP, the running of the effective QED coupling alpha(t) is measured for space-like momentum transfer from the angular distribution of small-angle Bhabha scattering. In an almost ideal QED framework, with very favourable experimental conditions, we obtain: Delta alpha(-6.07GeV^2) - Delta alpha(-1.81GeV^2) = (440 pm 58 pm 43 pm 30) X 10^-5, where the first error is statistical, the second is the experimental systematic and the third is the theoretical uncertainty. This agrees with current evaluations of alpha(t).The null hypothesis that alpha remains constant within the above interval of -t is excluded with a significance above 5sigma. Similarly, our results are inconsistent at the level of 3sigma with the hypothesis that only leptonic loops contribute to the running. This is currently the most significant direct measurment where the running alpha(t) is probed differentially within the measured t range., Comment: 43 pages, 12 figures, Submitted to Euro. Phys. J. C
Published: 2006

9. Determination of αS using jet rates at LEP with the OPAL detector

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Anagnostou, G., Anderson, K.J., Asai, S., Axen, D., Bailey, I., Barberio, E., Barillari, T., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Boeriu, O., Bock, P., Boutemeur, M., Braibant, S., Brown, Robert M., Burckhart, H.J., Campana, S., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, D.G., Ciocca, C., Csilling, A., Cuffiani, M., Dado, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Gagnon, P., Gary, John William, Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harel, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herten, G., Heuer, R.D., Hill, J.C., Horvath, D., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanzaki, J., Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kramer, T., Krasznahorkay, A., Krieger, P., von Krogh, J., Kuhl, T., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Lellouch, D., Lettso, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, A., Ludwig, J., Mader, W., Marcellini, S., Martin, A.J., Mashimo, T., Mattig, Peter, McKenna, J., McPherson, R.A., Meijers, F., Menges, W., Merritt, F.S., Mes, H., Meyer, Niels T., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Nanjo, H., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Pilcher, J.E., Pinfold, J., Plane, David E., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Roney, J.M., Rossi, A.M., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schorner-Sadenius, T., Schroder, Matthias, Schumacher, M., Seuster, R., Shears, T.G., Shen, B.C., Sherwood, P., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spano, F., Stahl, A., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vollmer, C.F., Vannerem, P., Vertesi, R., Verzocchi, M., Voss, H., Vossebeld, J., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Physics, Range (particle radiation), Jet (fluid), Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Detector, FOS: Physical sciences, 01 natural sciences, JADE (particle detector), High Energy Physics - Experiment, law.invention, High Energy Physics - Experiment (hep-ex), law, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Collider, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: Hadronic events produced in e+e- collisions by the LEP collider and recorded by the OPAL detector were used to form distributions based on the number of reconstructed jets. The data were collected between 1995 and 2000 and correspond to energies of 91 GeV, 130-136 GeV and 161-209 GeV. The jet rates were determined using four different jet-finding algorithms (Cone, JADE, Durham and Cambridge). The differential two-jet rate and the average jet rate with the Durham and Cambridge algorithms were used to measure alpha(s) in the LEP energy range by fitting an expression in which order alpah_2s calculations were matched to a NLLA prediction and fitted to the data. Combining the measurements at different centre-of-mass energies, the value of alpha_s (Mz) was determined to be alpha(s)(Mz)=0.1177+-0.0006(stat.)+-0.0012$(expt.)+-0.0010(had.)+-0.0032(theo.) \., 40 pages, 17 figures, Submitted to Euro. Phys. J. C
Published: 2005
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10. Measurement of the mass and width of the W boson

Author: G. ABBIENDI, C. AINSLEY, P. F. AKESSON, G. ALEXANDER, G. ANAGNOSTOU, K. J. ANDERSON, S. ASAI, D. AXEN, I. BAILEY, E. BARBERIO, T. BARILLARI, R. J. BARLOW, R. J. BATLEY, P. BECHTLE, T. BEHNKE, K. W. BELL, P. J. BELL, G. BELLA, A. BELLERIVE, G. BENELLI, S. BETHKE, O. BIEBEL, O. BOERIU, P. BOCK, M. BOUTEMEUR, S. BRAIBANT, R. M. BROWN, H. J. BURCKHART, S. CAMPANA, R. K. CARNEGIE, A. A. CARTER, J. R. CARTER, C. Y. CHANG, D. G. CHARLTON, A. CSILLING, S. DADO, A. DE ROECK, E. A. DE WOLF, S, K. DESCH, B. DIENES, J. DUBBERT, E. DUCHOVNI, G. DUCKECK, I. P. DUERDOTH, E. ETZION, F. FABBRI, P. FERRARI, F. FIEDLER, I. FLECK, M. FORD, A. FREY, P. GAGNON, J. W. GARY, C. GEICH GIMBEL, P. GIACOMELLI, M. GIUNTA, J. GOLDBERG, E. GROSS, J. GRUNHAUS, M. GRUW, P. O. GUNTHER, A. GUPTA, C. HAJDU, M. HAMANN, G. G. HANSON, A. HAREL, M. HAUSCHILD, C. M. HAWKES, R. HAWKINGS, R. J. HEMINGWAY, G. HERTEN, R. D. HEUER, J. C. HILL, D. HORVATH, P. IGO KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T. R. JUNK, J. KANZAKI, D. KARLEN, K. KAWAGOE, T. KAWAMOTO, R. K. KEELER, R. G. KELLOGG, B. W. KENNEDY, S. KLUTH, T. KOBAYASHI, M. KOBEL, S. KOMAMIYA, T. KRAMER, A. KRASZNAHORKAY, P. KRIEGER, J. VON KROGH, T. KUHL, M. KUPPER, G. D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S. L. LLOYD, F. K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W. MADER, S. MARCELLINI, A. J. MARTIN, T. MASHIMO, P. MATTIGM, J. MCKENNA, R. A. MCPHERSON, F. MEIJERS, W. MENGES, F. S. MERRITT, H. MES, N. MEYER, A. MICHELINI, S. MIHARA, G. MIKENBERG, D. J. MILLER, W. MOHR, T. MORI, A. MUTTER, K. NAGAI, I. NAKAMURA, H. NANJO, H. A. NEAL, R. NISIUS, S. W. O’NEALE, A. OH, M. J. OREGLIA, S. ORITO, C. PAHL, G. PASZTOR, J. R. PATER, J. E. PILCHER, J. PINFOLD, D. E. PLANE, O. POOTH, M. PRZYBYCIEN, A. QUADT, K. RABBERTZ, C. REMBSER, P. RENKEL, J. M. RONEY, Y. ROZEN, K. RUNGE, K. SACHS, T. SAEKI, E. K. G. SARKISYAN, A. D. SCHAILE, O. SCHAILE, P. SCHARFF HANSEN, J. SCHIECK, T. SCHORNER SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T. G. SHEARS, B. C. SHEN, P. SHERWOOD, A. SKUJA, A. M. SMITH, R. SOBIE, S. SOLDNER REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S. TAREM, M. TASEVSKY, R. TEUSCHER, M. A. THOMSON, E. TORRENCE, D. TOYA, P. TRAN, I. TRIGGER, Z. TROCSANYI, E. TSUR, M. F. TURNER WATSON, I. UEDA, B. UJVARI, C. F. VOLLMER, P. VANNEREM, R. VERTESI, M. VERZOCCHI, H. VOSS, J. VOSSEBELD, C. P. WARD, D. R. WARD, P. M. WATKINS, A. T. WATSON, N. K. WATSON, P. S. WELLS, T. WENGLER, N. WERMES, G. W. WILSON1, J. A. WILSON, G. WOLF, T. R. WYATT, S. YAMASHITA, D. ZER ZION, L. ZIVKOVIC, CAPILUPPI, PAOLO, CIOCCA, CLAUDIA, CUFFIANI, MARCO, GIACOMELLI, GIORGIO MARIA, ROSSI, ANTONIO MARIA, OPAL Collaboration, G.ABBIENDI, C.AINSLEY, P.F.AKESSON, G.ALEXANDER, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, R.M.BROWN, H.J.BURCKHART, S.CAMPANA, P.CAPILUPPI, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW, P.O.GUNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, D.HORVATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KRAMER, A.KRASZNAHORKAY, P.KRIEGER, J. VON KROGH, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU27, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, T.MASHIMO, P.MATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.PASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, O.POOTH, M.PRZYBYCIEN, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, A.M.ROSSI, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCHORNER-SADENIUS, M. SCHRODER, M. SCHUMACHER, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. SOLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STROHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TROCSANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJVARI, C.F.VOLLMER, P.VANNEREM, R.VERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON1, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Physics, Jet (fluid), Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Electroweak interaction, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Beam energy, Particle Physics - Experiment
Abstract: The mass and width of the W boson are measured using e+e- -> W+W- events from the data sample collected by the OPAL experiment at LEP at centre-of-mass energies between 170 GeV and 209 GeV. The mass (mw) and width (gw) are determined using direct reconstruction of the kinematics of W+W- -> qqbarlv and W+W- -> qqbarqqbar events. When combined with previous OPAL measurements using W+W- -> lvlv events and the dependence on mw of the WW production cross-section at threshold, the results are determined to be mw = 80.415 +- 0.042 +- 0.030 +- 0.009 GeV gw = 1.996 +- 0.096 +- 0.102 +- 0.003 GeV where the first error is statistical, the second systematic and the third due to uncertainties in the value of the LEP beam energy. By measuring mw with several different jet algorithms in the qqbarqqbar channel, a limit is also obtained on possible final-state interactions due to colour reconnection effects in W+W- -> qqbarqqbar events. The consistency of the results for the W mass and width with those inferred from other electroweak parameters provides an important test of the Standard Model of electroweak interactions, 49 pages, 9 figures, Submitted to Euro. Phys. J. C
Published: 2005

11. Measurement of the partial widths of the Z into up- and down-type quarks

Author: P. Igo-Kemenes, K. Ishii, H. Jeremie, Gideon Bella, H. J. Burckhart, O. Schaile, P. J. Bell, Yoram Rozen, T. Kuhl, J. Goldberg, R. J. Hemingway, J. Lillich, Graham Wilson, B. W. Kennedy, P. Jovanovic, Peter Krieger, H. Nanjo, D. J. Miller, Junichi Kanzaki, E. Torrence, A. Gupta, Silvia Arcelli, Pamela Ferrari, J. G. Layter, Shlomo Dado, D. Toya, Giora Mikenberg, A. J. Martin, K. Buesser, A. Csilling, H. Landsman, E. L. Barberio, A. D. Schaile, Gabriella Pasztor, P. Vannerem, D. Axen, Daniel Lellouch, Dave Charlton, Takehiko Mori, W. Menges, A. Okpara, H. Voss, Klaus Rabbertz, Christoph Rembser, G. Gaycken, Oana Elena Vickey Boeriu, Claudia Ciocca, Stephen Lloyd, Otmar Biebel, C. P. Ward, L. Brigliadori, P. Hüntemeyer, M. Gruwé, K. Sachs, W. Mader, Philip Bechtle, D. E. Plane, M. Schumacher, F. Spano, S. Söldner-Rembold, Guenter Duckeck, R. D. Heuer, Richard Nisius, Erez Etzion, Tara Shears, P. Tran, Peter Sherwood, G. Giacomelli, Oliver Pooth, A. De Roeck, M. Kobel, Marco Cuffiani, Alain Bellerive, M. A. Thomson, C. F. Vollmer, Kiyotomo Kawagoe, Stefan Kluth, Richard Teuscher, Shlomit Tarem, E. A. De Wolf, Teresa Barillari, Gideon Alexander, J. Ludwig, B. Poli, John Allison, K. Runge, P. Bock, E. K. U. Gross, Jochen Schieck, Frans Meijers, R. J. Barlow, K. Hoffman, Stefano Rosati, M. Giunta, Matthias Schröder, P. Amaral, Ehud Duchovni, N. K. Watson, P. Mättig, S. W. O'Neale, Shoji Asai, R. M. Brown, P. Gagnon, P. Scharff-Hansen, A. Michelini, Norbert Wermes, Lorne Levinson, P. O. Günther, Gunter Wolf, T. Kawamoto, C. Pahl, H. Mes, T. Schörner-Sadenius, T. Kobayashi, I. R. Bailey, Georges Azuelos, A. Ludwig, E. Tsur, C. Ainsley, R. G. Kellogg, D. Karlen, I. P. Duerdoth, S. Braibant, G. D. Lafferty, C. M. Hawkes, Csaba Hajdu, Isabel Marian Trigger, K. W. Bell, S. Orito, Zoltan Laszlo Trocsanyi, Stefano Marcellini, G. Anagnostou, J. C. Hill, A. M. Smith, R. J. Batley, James Letts, J. M. Roney, Tobias Kramer, K. J. Anderson, S. Campana, B. C. Shen, Alexander Oh, R. Vértesi, M. Donkers, Arnulf Quadt, Siegfried Bethke, I. Nakamura, D. Lanske, Koichi Nagai, Andris Skuja, P. M. Watkins, M. J. Oreglia, W. G. Scott, W. Mohr, J. W. Gary, Gordon H. Hanson, Gianni Masetti, P. Renkel, Tetsuro Mashimo, M. Ford, M. F. Turner-Watson, C. Y. Chang, L. Zivkovic, Marek Tasevsky, Dezso Horvath, J. R. Carter, M. Kupper, S. Moed, D. Zer-Zion, T. Behnke, Satoshi Mihara, F. K. Loebinger, Katja Klein, Ivor Fleck, Joleen Pater, Edward K. G. Sarkisyan, A. Klier, Frank Fiedler, Balazs Ujvari, H. A. Neal, N. Kanaya, Raimund Ströhmer, D. R. Ward, Beatrix Dienes, Christoph Geich-Gimbel, Lutz Feld, Sachio Komamiya, M. Boutemeur, F. S. Merritt, J. A. McKenna, D. Waller, K. Kruger, T. Saeki, M. Hamann, Richard Keeler, R. J. Sobie, T. R. Junk, Joost Vossebeld, Klaus Desch, Gregor Herten, James Pinfold, R. Seuster, A. Mutter, A. Harel, Ikuo Ueda, D. M. Strom, J. Lu, J. E. Pilcher, P. S. Wells, M. Hauschild, Terry Richard Wyatt, A. T. Watson, Achim Stahl, M. Przybycień, J. Grunhaus, Thorsten Wengler, A. A. Carter, Paolo Giacomelli, Gabriele Benelli, Robert McPherson, Mathieu Doucet, M. Verzocchi, Fabrizio Fabbri, A. Frey, P. F. Åkesson, Giovanni Abbiendi, J. Dubbert, R. K. Carnegie, J. A. Wilson, J. von Krogh, R. J. Hawkings, D. Wetterling, S. Yamashita, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ARCELLI, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Hadronic decay, Physics, Quark, Nuclear and High Energy Physics, Particle physics, Photon, 010308 nuclear & particles physics, Electron–positron annihilation, Hadron, Nuclear Theory, High Energy Physics::Phenomenology, FOS: Physical sciences, Type (model theory), 01 natural sciences, High Energy Physics - Experiment, Standard Model, Nuclear physics, High Energy Physics - Experiment (hep-ex), Electromagnetic calorimeter, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Nuclear Experiment, Particle Physics - Experiment
Abstract: Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z -> qbarq gamma decays were selected by tagging hadronic final states with isolated photon candidates in the electromagnetic calorimeter. Combining the measured rates of Z -> qbarq gamma decays with the total rate of hadronic Z decays permits the simultaneous determination of the widths of the Z into up- and down-type quarks. The values obtained, with total errors, were Gamma u = 300 ^{+19}_{-18} MeV and Gamma d = 381 ^{+12}_{-12} MeV. The results are in good agreement with the Standard Model expectation., 22 pages, 5 figures, Submitted to Phys. Letts. B
Published: 2004

12. Measurement of the Strange Spectral Function in Hadronic tau Decays

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barillari, T., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Boeriu, O., Bock, P., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, D.G., Ciocca, C., Csilling, A., Cuffiani, M., Dado, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harel, A., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Horvath, D., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kramer, T., Krieger, P., von Krogh, J., Kruger, K., Kuhl, T., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Lellouch, D., Lettso, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, A., Ludwig, J., Mader, W., Marcellini, S., Martin, A.J., Masetti, G., Mashimo, T., Mattig, Peter, McKenna, J., McPherson, R.A., Meijers, F., Menges, W., Menke, S., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Nanjo, H., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schorner-Sadenius, T., Schroder, Matthias, Schumacher, M., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Sherwood, P., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spano, F., Stahl, A., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vollmer, C.F., Vannerem, P., Vertesi, R., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ARCELLI, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), Meson, 010308 nuclear & particles physics, Monte Carlo method, Hadron, Nuclear Theory, FOS: Physical sciences, Strangeness, 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pion, 0103 physical sciences, Invariant mass, High Energy Physics::Experiment, Spectral function, 010306 general physics, Nuclear Experiment, Engineering (miscellaneous), Particle Physics - Experiment, Lepton
Abstract: Tau lepton decays with open strangeness in the final state are measured with the OPAL detector at LEP to determine the strange hadronic spectral function of the tau lepton. The decays T- ->(Kpi)-nu tau, (Kpipi)-nu tau and (Kpipipi) -nu tau with final states consisting of neutral and charged kaons and pions have been studied. The invariant mass distributions of 93.4% of these final states have been experimentally determined. Monte Carlo simulations have been used for the remaining 6.6% and for the strange final states including eta mesons. The reconstructed strange final states, corrected for resolution effects and detection efficiencies, yield the strange spectral function of the tau lepton. The moments of the spectral function and the ration of strange to non-strange moments, which are important input parameters for theoretical analysis, are determined. Furthermore, the branching fractions B(tau- -> K-pi0nu tau)=(0.471+-0.064stat+_0.022sys)% and B(tau- -> K-pi+pi-nu tau)=(0.415+-0.059stat+-0.031sys)% have been measured., 32 pages, 18 figures, Submitted to Euro. Phys.J. C
Published: 2004
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13. Search for anomalous production of di-lepton events with missing transverse momentum in <tex>e(^{+})e(^{-})$</tex> collisions at root √s=183-209 GeV

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Boeriu, O., Bock, P., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Horvath, D., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kramer, T., Krieger, P., von Krogh, J., Kruger, K., Kuhl, T., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Lettso, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Martin, A.J., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Nanjo, H., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vollmer, C.F., Vannerem, P., Vertesi, R., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, OPAL Collaboration, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ARCELLI, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, G.P.SIROLI, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Physics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Branching fraction, High Energy Physics::Phenomenology, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), Pair production, 0103 physical sciences, Higgs boson, High Energy Physics::Experiment, Production (computer science), 010306 general physics, Engineering (miscellaneous), Event (particle physics), Particle Physics - Experiment, Lepton, Boson
Abstract: In total 1317 di-lepton events with significant missing transverse momentum were identified in a total data sample of 680 pb-1 collected at e+e- centre-of-mass energies ranging from 183 GeV to 209 GeV. The number of di-lepton events, the dependence on centre-of-mass energy, and the event properties are consistent with expectations from Standard Model processes, predominantly W+W- production with both W bosons decaying leptonically. This topology is also an experimental signature for the pair production of new particles that decay to a charged lepton accompanied by one or more invisible particles. No evidence for new phenomena is apparent. Upper limits are presented on the production cross-section multiplied by the relevant branching ratio squared for sleptons, leptonically decaying charginos and charged Higgs bosons. Mass limits are also given., Comment: 42 pages, 15 figures, Submitted to Eur. Phys. J. C
Published: 2004

14. W Boson Polarisation at LEP2

Author: R. Vértesi, Gordon H. Hanson, M. Ford, Andris Skuja, P. J. Bell, Satoshi Mihara, Katja Klein, S. Yamashita, P. Igo-Kemenes, S. Campana, D. J. Miller, T. R. Junk, Tetsuro Mashimo, M. F. Turner-Watson, K. Ishii, H. Jeremie, Richard Teuscher, G. Gaycken, D. Axen, T. R. Wyatt, H. Nanjo, Gregor Herten, Frank Fiedler, Oana Elena Vickey Boeriu, Teresa Barillari, A. Csilling, F. Spano, M. Schumacher, O. Schaile, Gianni Masetti, Peter Sherwood, Guenter Duckeck, M. Kupper, Oliver Pooth, T. Kuhl, Dave Charlton, E. A. De Wolf, John Allison, C. Y. Chang, J. Ludwig, K. Runge, P. Bock, Matthias Schröder, J. E. Pilcher, B. Poli, S. Moed, James Pinfold, R. Seuster, J. von Krogh, P. Amaral, H. Mes, M. Gruwé, J. Grunhaus, I. P. Duerdoth, P. Mättig, Shoji Asai, R. G. Kellogg, Georges Azuelos, Richard Nisius, T. Schörner-Sadenius, R. K. Keeler, R. J. Hawkings, D. Wetterling, Robert McPherson, H. Voss, Erez Etzion, S. Braibant, M. J. Oreglia, Daniel Lellouch, Takehiko Mori, A. Okpara, A. Harel, E. Tsur, C. M. Hawkes, T. Behnke, L. Brigliadori, Tara Shears, Arnulf Quadt, N. Kanaya, Csaba Hajdu, Stefan Kluth, Shlomit Tarem, L. Zivkovic, J. R. Carter, H. Landsman, Isabel Marian Trigger, K. W. Bell, Ikuo Ueda, D. M. Strom, J. C. Hill, Stefano Marcellini, P. M. Watkins, S. W. O'Neale, W. Menges, Otmar Biebel, Fabrizio Fabbri, A. Frey, Marco Cuffiani, Tobias Kramer, P. Gagnon, G. Giacomelli, B. C. Shen, J. Lu, P. O. Günther, M. Donkers, James Letts, Siegfried Bethke, M. Przybycień, Stefano Rosati, R. J. Batley, Alexander Oh, M. Giunta, W. G. Scott, Kiyotomo Kawagoe, Claudia Ciocca, K. J. Anderson, A. A. Carter, P. Scharff-Hansen, A. De Roeck, M. Kobel, E. L. Barberio, P. Renkel, J. W. Gary, Zoltan Laszlo Trocsanyi, Raimund Ströhmer, K. Hodman, I. Nakamura, D. Lanske, A. J. Martin, M. Hamann, K. Sachs, J. M. Roney, D. R. Ward, Norbert Wermes, R. J. Hemingway, T. Kawamoto, Philip Bechtle, Paolo Giacomelli, A. Mutter, Marek Tasevsky, Dezso Horvath, S. Orito, J. Lillich, D. Zer-Zion, J. Couchman, W. Mader, M. Verzocchi, P. F. Åkesson, Giovanni Abbiendi, F. K. Loebinger, B. W. Kennedy, N. K. Watson, Koichi Nagai, Frans Meijers, Yoram Rozen, R. J. Sobie, P. Jovanovic, Joost Vossebeld, Klaus Desch, Peter Krieger, Ivor Fleck, W. Mohr, Gunter Wolf, A. M. Smith, C. Pahl, J. Dubbert, R. K. Carnegie, G. D. Lafferty, Junichi Kanzaki, Beatrix Dienes, J. A. Wilson, Joleen Pater, Edward K. G. Sarkisyan, K. Buesser, A. Klier, C. Ainsley, Balazs Ujvari, H. A. Neal, P. S. Wells, D. Karlen, Pamela Ferrari, J. G. Layter, C. F. Vollmer, Achim Stahl, A. T. Watson, Sachio Komamiya, Jochen Schieck, M. A. Thomson, E. K. U. Gross, R. J. Barlow, D. Waller, K. Kruger, T. Saeki, Alain Bellerive, Shlomo Dado, D. Toya, J. Goldberg, Giora Mikenberg, A. D. Schaile, Gabriella Pasztor, P. Vannerem, C. P. Ward, S. Söldner-Rembold, G. Anagnostou, G. W. Wilson, M. Hauschild, R. D. Heuer, Thorsten Wengler, Christoph Rembser, Gabriele Benelli, Gideon Bella, H. J. Burckhart, M. Boutemeur, F. S. Merritt, J. A. McKenna, R. M. Brown, Lorne Levinson, Christoph Geich-Gimbel, I. R. Bailey, Lutz Feld, Ehud Duchovni, A. Michelini, T. Kobayashi, A. Ludwig, E. Torrence, Klaus Rabbertz, A. Gupta, Stephen Lloyd, S. Arcelli, Gideon Alexander, D. E. Plane, P. Tran, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ARCELLI, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, C.CIOCCA, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, 010308 nuclear & particles physics, Electron–positron annihilation, High Energy Physics::Phenomenology, FOS: Physical sciences, 01 natural sciences, Standard Model, High Energy Physics - Experiment, Nuclear physics, Matrix (mathematics), High Energy Physics - Experiment (hep-ex), Pair production, 0103 physical sciences, High Energy Physics::Experiment, Spin density, 010306 general physics, Particle Physics - Experiment, Boson, Event generator, Lepton
Abstract: Elements of the spin density matrix for W bosons in e+e- -> W+W- -> qqln events are measured from data recorded by the OPAL detector at LEP. This information is used calculate polarised differential cross-sections and to search for CP-violating effects. Results are presented for W bosons produced in e+e- collisions with centre-of-mass energies between 183 GeV and 209 GeV. The average fraction of W bosons that are longitudinally polarised is found to be (23.9 +- 2.1 +- 1.1)% compared to a Standard Model prediction of (23.9 +- 0.1)%. All results are consistent with CP conservation., 20 pages, 3 figures, Submitted to Phys. Letts. B
Published: 2003

15. Study of Z Pair Production and Anomalous Couplings in $e^+ e^-$ Collisions at $\sqrt{s}$ between 190 GeV and 209 GeV

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Boeriu, O., Bock, P., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Horvath, D., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kramer, T., Krieger, P., von Krogh, J., Kruger, K., Kuhl, T., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Lettso, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Martin, A.J., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Nanjo, H., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Rick, H., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vollmer, C.F., Vannerem, P., Vertesi, R., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Warsinsky, M., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Quark, Physics, Particle physics, Annihilation, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Hadron, High Energy Physics::Phenomenology, FOS: Physical sciences, Observable, State (functional analysis), 01 natural sciences, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Pair production, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Event (particle physics), Particle Physics - Experiment, Lepton
Abstract: A study of Z-boson pair production in e+e- annihilation at center-of-mass energies between 190 GeV and 209 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nn), quark and lepton pairs, (qql+l-, qqnn) and only hadrons (qqqq) are considered. In all states with at least one Z boson decaying hadronically, lifetime, lepton and event-shape tags are used to separate bb pairs from qq final state. Limits on anomalous ZZgamma and ZZZ couplings are derived from the measured cross sections and from event kinematics using an optimal observable method. Limits on low scale gravity with large dimensions are derived from the cross sections and their dependence on polar angle., 34 pages, 10 figures, Submitted to Eur. Phys. J
Published: 2003

16. Tests of models of color reconnection and a search for glueballs using gluon jets with a rapidity gap

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Boeriu, O., Bock, P., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Horvath, D., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kramer, T., Krieger, P., von Krogh, J., Kruger, K., Kuhl, T., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Lettso, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Martin, A.J., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Nanjo, H., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vollmer, C.F., Vannerem, P., Vertesi, R., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, D., Wilson, G.W., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ARCELLI, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, G.P.SIROLI, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, L. ZIVKOVIC, and OPAL Collaboration
Subjects: Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Monte Carlo method, High Energy Physics::Phenomenology, FOS: Physical sciences, Parton, Jet (particle physics), 01 natural sciences, High Energy Physics - Experiment, Gluon, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Cutoff, Rapidity, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment
Abstract: Gluon jets with a mean energy of 22 GeV and purity of 95% are selected from hadronic Z0 decay events produced in e+e- annihilations. A subsample of these jets is identified which exhibits a large gap in the rapidity distribution of particles within the jet. After imposing the requirement of a rapidity gap, the gluon jet purity is 86%. These jets are observed to demonstrate a high degree of sensitivity to the presence of color reconnection, i.e. higher order QCD processes affecting the underlying color structure. We use our data to test three QCD models which include a simulation of color reconnection: one in the Ariadne Monte Carlo, one in the Herwig Monte Carlo, and the other by Rathsman in the Pythia Monte Carlo. We find the Rathsman and Ariadne color reconnection models can describe our gluon jet measurements only if very large values are used for the cutoff parameters which serve to terminate the parton showers, and that the description of inclusive Z0 data is significantly degraded in this case. We conclude that color reconnection as implemented by these two models is disfavored. The signal from the Herwig color reconnection model is less clear and we do not obtain a definite conclusion concerning this model. In a separate study, we follow recent theoretical suggestions and search for glueball-like objects in the leading part of the gluon jets. No clear evidence is observed for these objects., Comment: 42 pages, 18 figures
Published: 2003

17. Measurement of charged current triple gauge boson couplings using W pairs at LEP

Author: Abbiendi, G., Ainsley, C., Akesson, P.F., Alexander, G., Allison, John, Amaral, P., Anagnostou, G., Anderson, K.J., Arcelli, S., Asai, S., Axen, D., Azuelos, G., Bailey, I., Barberio, E., Barlow, R.J., Batley, R.J., Bechtle, P., Behnke, T., Bell, Kenneth Watson, Bell, P.J., Bella, G., Bellerive, A., Benelli, G., Bethke, S., Biebel, O., Boeriu, O., Bock, P., Boutemeur, M., Braibant, S., Brigliadori, L., Brown, Robert M., Buesser, K., Burckhart, H.J., Campana, S., Carnegie, R.K., Caron, B., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Csilling, A., Cuffiani, M., Dado, S., De Roeck, A., De Wolf, E.A., Desch, K., Dienes, B., Donkers, M., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Etzion, E., Fabbri, F., Feld, L., Ferrari, P., Fiedler, F., Fleck, I., Ford, M., Frey, A., Furtjes, A., Gagnon, P., Gary, John William, Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Giunta, Marina, Goldberg, J., Groll, M., Gross, E., Grunhaus, J., Gruwe, M., Gunther, P.O., Gupta, A., Hajdu, C., Hamann, M., Hanson, G.G., Harder, K., Harel, A., Harin-Dirac, M., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Hensel, C., Herten, G., Heuer, R.D., Hill, J.C., Hoffman, Kara Dion, Horvath, D., Igo-Kemenes, P., Ishii, K., Jeremie, H., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karapetian, G., Karlen, D., Kawagoe, K., Kawamoto, T., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klein, K., Klier, A., Kluth, S., Kobayashi, T., Kobel, M., Komamiya, S., Kormos, Laura L., Kramer, T., Krieger, P., von Krogh, J., Kruger, K., Kuhl, T., Kupper, M., Lafferty, G.D., Landsman, H., Lanske, D., Layter, J.G., Leins, A., Lellouch, D., Lettso, J., Levinson, L., Lillich, J., Lloyd, S.L., Loebinger, F.K., Lu, J., Ludwig, J., Macpherson, A., Mader, W., Marcellini, S., Martin, A.J., Masetti, G., Mashimo, T., Mattig, Peter, McDonald, W.J., McKenna, J., McMahon, T.J., McPherson, R.A., Meijers, F., Menges, W., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Moed, S., Mohr, W., Mori, T., Mutter, A., Nagai, K., Nakamura, I., Nanjo, H., Neal, H.A., Nisius, R., O'Neale, S.W., Oh, A., Okpara, A., Oreglia, M.J., Orito, S., Pahl, C., Pasztor, G., Pater, J.R., Patrick, G.N., Pilcher, J.E., Pinfold, J., Plane, David E., Poli, B., Polok, J., Pooth, O., Przybycien, M., Quadt, A., Rabbertz, K., Rembser, C., Renkel, P., Roney, J.M., Rosati, S., Rozen, Y., Runge, K., Sachs, K., Saeki, T., Sarkisyan, E.K.G., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schoerner-Sadenius, Thomas, Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Sherwood, P., Siroli, G., Skuja, A., Smith, A.M., Sobie, R., Soldner-Rembold, S., Spano, F., Stahl, A., Stephens, K., Strom, David M., Strohmer, R., Tarem, S., Tasevsky, M., Taylor, R.J., Teuscher, R., Thomson, M.A., Torrence, E., Toya, D., Tran, P., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Ujvari, B., Vollmer, C.F., Vannerem, P., Vertesi, R., Verzocchi, M., Voss, H., Vossebeld, J., Waller, D., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wengler, T., Wermes, N., Wetterling, G.W., Wilson, D., Wilson, J.A., Wolf, G., Wyatt, T.R., Yamashita, S., Zer-Zion, D., Zivkovic, Lidija, G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ARCELLI, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, G.P.SIROLI, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Physics, Coupling, Particle physics, Gauge boson, Luminosity (scattering theory), Photon, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Detector, Inverse, FOS: Physical sciences, 01 natural sciences, High Energy Physics - Experiment, Standard Model, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Charged current
Abstract: Triple gauge boson couplings are measured from W-pair and single photon events recorded by the OPAL detector at LEP at center-of-mass energies between 183 - 209 GeV with a total integrated luminosity of 680 inverse picobarns. Only CP-conserving couplings are considered and SU(2)xU(1) relations between the WWZ and the WWgamma couolings are used, resulting in four independent couplings. Each coupling is determined in a separate fit, assuming the other couplings to take their Standard Model values. Fits are also done allowing some of the couplings to vary simultaneously. The results are compared with the Standard Model predictions., Comment: 27 pages, 6 figures, Submitted to Eur. Phys. J. C
Published: 2003
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18. Search for R-parity violating decays of scalar fermions at LEP

Author: Abbiendi, G., Ackerstaff, K., Alexander, G., Allison, John, Altekamp, N., Anderson, K.J., Anderson, S., Arcelli, S., Asai, S., Ashby, S.F., Axen, D., Azuelos, G., Ball, A.H., Barberio, E., Barlow, Roger J., Batley, J.R., Baumann, S., Bechtluft, J., Behnke, T., Bell, Kenneth Watson, Bella, G., Bellerive, A., Bentvelsen, S., Bethke, S., Betts, S., Biebel, O., Biguzzi, A., Bloodworth, I.J., Bock, P., Bohme, J., Bonacorsi, D., Boutemeur, M., Braibant, S., Bright-Thomas, P., Brigliadori, L., Brown, Robert M., Burckhart, H.J., Capiluppi, P., Carnegie, R.K., Carter, A.A., Carter, J.R., Chang, C.Y., Charlton, David G., Chrisman, D., Ciocca, C., Clarke, P.E.L., Clay, E., Cohen, I., Conboy, J.E., Cooke, O.C., Couchman, J., Couyoumtzelis, C., Coxe, R.L., Cuffiani, M., Dado, S., Dallavalle, G.Marco, Davis, R., De Jong, S., de Roeck, A., Dervan, P., Desch, K., Dienes, B., Dixit, M.S., Dubbert, J., Duchovni, E., Duckeck, G., Duerdoth, I.P., Estabrooks, P.G., Etzion, E., Fabbri, F., Fanfani, A., Fanti, M., Faust, A.A., Fiedler, F., Fierro, M., Fleck, I., Frey, A., Furtjes, A., Futyan, D.I., Gagnon, P., Gary, J.W., Gascon-Shotkin, S.M., Gaycken, G., Geich-Gimbel, C., Giacomelli, G., Giacomelli, P., Gibson, V., Gibson, W.R., Gingrich, D.M., Glenzinski, D., Goldberg, J., Gorn, W., Grandi, C., Graham, K., Gross, E., Grunhaus, J., Gruwe, M., Hajdu, C., Hanson, G.G., Hansroul, M., Hapke, M., Harder, K., Harel, A., Hargrove, C.K., Harin-Dirac, M., Hauschild, M., Hawkes, C.M., Hawkings, R., Hemingway, R.J., Herndon, M., Herten, G., Heuer, R.D., Hildreth, M.D., Hill, J.C., Hobson, P.R., Hocker, James Andrew, Hoffman, Kara Dion, Homer, R.J., Honma, A.K., Horvath, D., Hossain, K.R., Howard, R., Huntemeyer, P., Igo-Kemenes, P., Imrie, D.C., Ishii, K., Jacob, F.R., Jawahery, A., Jeremie, H., Jimack, M., Jones, C.R., Jovanovic, P., Junk, T.R., Kanaya, N., Kanzaki, J., Karlen, D., Kartvelishvili, V., Kawagoe, K., Kawamoto, T., Kayal, P.I., Keeler, R.K., Kellogg, R.G., Kennedy, B.W., Kim, D.H., Klier, A., Kobayashi, T., Kobel, M., Kokott, T.P., Kolrep, M., Komamiya, S., Kowalewski, Robert V., Kress, T., Krieger, P., von Krogh, J., Kuhl, T., Kyberd, P., Lafferty, G.D., Landsman, H., Lanske, D., Lauber, J., Lawson, I., Layter, J.G., Lellouch, D., Letts, J., Levinson, L., Liebisch, R., List, B., Littlewood, C., Lloyd, A.W., Lloyd, S.L., Loebinger, F.K., Long, G.D., Losty, M.J., Lu, J., Ludwig, J., Lui, D., Macchiolo, A., Macpherson, A., Mader, W., Mannelli, M., Marcellini, S., Martin, A.J., Martin, J.P., Martinez, G., Mashimo, T., Mattig, Peter, McDonald, W.John, McKenna, J., Mckigney, E.A., McMahon, T.J., McPherson, R.A., Meijers, F., Mendez-Lorenzo, P., Merritt, F.S., Mes, H., Michelini, A., Mihara, S., Mikenberg, G., Miller, D.J., Mohr, W., Montanari, A., Mori, T., Nagai, K., Nakamura, I., Neal, H.A., Nisius, R., O'Neale, S.W., Oakham, F.G., Odorici, F., Ogren, H.O., Okpara, A., Oreglia, M.J., Orito, S., Pasztor, G., Pater, J.R., Patrick, G.N., Patt, J., Perez-Ochoa, R., Petzold, S., Pfeifenschneider, P., Pilcher, J.E., Pinfold, J., Plane, David E., Poffenberger, P., Poli, B., Polok, J., Przybycien, M., Quadt, A., Rembser, C., Rick, H., Robertson, S., Robins, S.A., Rodning, N., Roney, J.M., Rosati, S., Roscoe, K., Rossi, A.M., Rozen, Y., Runge, K., Runolfsson, O., Rust, D.R., Sachs, K., Saeki, T., Sahr, O., Sang, W.M., Sarkisian, E.K.G., Sbarra, C., Schaile, A.D., Schaile, O., Scharff-Hansen, P., Schieck, J., Schmitt, S., Schoning, A., Schroder, Matthias, Schumacher, M., Schwick, C., Scott, W.G., Seuster, R., Shears, T.G., Shen, B.C., Shepherd-Themistocleous, C.H., Sherwood, P., Siroli, G.P., Sittler, A., Skuja, A., Smith, A.M., Snow, G.A., Sobie, R., Soldner-Rembold, S., Spagnolo, S., Sproston, M., Stahl, A., Stephens, K., Steuerer, J., Stoll, K., Strom, David M., Strohmer, R., Surrow, B., Talbot, S.D., Taras, P., Tarem, S., Teuscher, R., Thiergen, M., Thomas, J., Thomson, M.A., Torrence, E., Towers, S., Trigger, I., Trocsanyi, Z., Tsur, E., Turner-Watson, M.F., Ueda, I., Van Kooten, Rick J., Vannerem, P., Verzocchi, M., Voss, H., Wackerle, F., Wagner, A., Ward, C.P., Ward, D.R., Watkins, P.M., Watson, A.T., Watson, N.K., Wells, P.S., Wermes, N., Wetterling, D., White, J.S., Wilson, G.W., Wilson, J.A., Wyatt, T.R., Yamashita, S., Zacek, V., Zer-Zion, D., G.ABBIENDI, C.AINSLEY, P.F.°AKESSON, G.ALEXANDER, J.ALLISON, P.AMARAL, G.ANAGNOSTOU, K.J.ANDERSON, S.ARCELLI, S.ASAI, D.AXEN, G.AZUELOS, I.BAILEY, E.BARBERIO, T.BARILLARI, R.J.BARLOW, R.J.BATLEY, P.BECHTLE, T.BEHNKE, K.W.BELL, P.J.BELL, G.BELLA, A.BELLERIVE, G.BENELLI, S.BETHKE, O.BIEBEL, O.BOERIU, P.BOCK, M.BOUTEMEUR, S.BRAIBANT, L.BRIGLIADORI, R.M.BROWN, K.BUESSER, H.J.BURCKHART, S.CAMPANA, R.K.CARNEGIE, A.A.CARTER, J.R.CARTER, C.Y.CHANG, D.G.CHARLTON, A.CSILLING, M.CUFFIANI, S.DADO, A.DE ROECK, E.A.DE WOLF, K.DESCH, B.DIENES, M.DONKERS, J.DUBBERT, E.DUCHOVNI, G.DUCKECK, I.P.DUERDOTH, E.ETZION, F.FABBRI, L.FELD, P.FERRARI, F.FIEDLER, I.FLECK, M.FORD, A.FREY, P.GAGNON, J.W.GARY, G.GAYCKEN, C.GEICH-GIMBEL, G.GIACOMELLI, P.GIACOMELLI, M.GIUNTA, J.GOLDBERG, E.GROSS, J.GRUNHAUS, M.GRUW´E, P.O.G¨UNTHER, A.GUPTA, C.HAJDU, M.HAMANN, G.G.HANSON, A.HAREL, M.HAUSCHILD, C.M.HAWKES, R.HAWKINGS, R.J.HEMINGWAY, G.HERTEN, R.D.HEUER, J.C.HILL, K.HOFFMAN, D.HORV´ATH, P. IGO-KEMENES, K. ISHII, H. JEREMIE, P. JOVANOVIC, T.R. JUNK, N.KANAYA, J.KANZAKI, D.KARLEN, K.KAWAGOE, T.KAWAMOTO, R.K.KEELER, R.G.KELLOGG, B.W.KENNEDY, S.KLUTH, T.KOBAYASHI, M.KOBEL, S.KOMAMIYA, T.KR¨AMER, P.KRIEGER, J. VON KROGH, K.KRUGER, T.KUHL, M.KUPPER, G.D. LAFFERTY, H. LANDSMAN, D. LANSKE, J.G. LAYTER, D. LELLOUCH, J. LETTSO, L. LEVINSON, J. LILLICH, S.L. LLOYD, F.K. LOEBINGER, J. LU, A. LUDWIG, J. LUDWIG, W.MADER, S.MARCELLINI, A.J.MARTIN, G.MASETTI, T.MASHIMO, P.M¨ATTIGM, J.MCKENNA, R.A.MCPHERSON, F.MEIJERS, W.MENGES, F.S.MERRITT, H.MES, N.MEYER, A.MICHELINI, S.MIHARA, G.MIKENBERG, D.J.MILLER, S.MOED, W.MOHR, T.MORI, A.MUTTER, K.NAGAI, I.NAKAMURA, H.NANJO, H.A.NEAL, R.NISIUS, S.W.O’NEALE, A.OH, M.J.OREGLIA, S.ORITO, C.PAHL, G.P´ASZTOR, J.R.PATER, J.E.PILCHER, J.PINFOLD, D.E.PLANE, B.POLI, O.POOTH, M.PRZYBYCIE´N, A.QUADT, K.RABBERTZ, C.REMBSER, P.RENKEL, J.M.RONEY, Y.ROZEN, K.RUNGE, K. SACHS, T. SAEKI, E.K.G. SARKISYAN, A.D. SCHAILE, O. SCHAILE, P. SCHARFF-HANSEN, J. SCHIECK, T. SCH¨ORNER-SADENIUS, M. SCHR¨ODER, M. SCHUMACHER, W.G. SCOTT, R. SEUSTER, T.G. SHEARS, B.C. SHEN, P. SHERWOOD, G.P.SIROLI, A. SKUJA, A.M. SMITH, R. SOBIE, S. S¨OLDNER-REMBOLD, F. SPANO, A. STAHL, D. STROM, R. STR¨OHMER, S.TAREM, M.TASEVSKY, R.TEUSCHER, M.A.THOMSON, E.TORRENCE, D.TOYA, P.TRAN, I.TRIGGER, Z.TR´OCS´ANYI, E.TSUR, M.F.TURNER-WATSON, I.UEDA, B.UJV´ARI, C.F.VOLLMER, P.VANNEREM, R.V´ERTESI, M.VERZOCCHI, H.VOSS, J.VOSSEBELD, C.P.WARD, D.R.WARD, P.M.WATKINS, A.T.WATSON, N.K.WATSON, P.S.WELLS, T.WENGLER, N.WERMES, G.W.WILSON, J.A.WILSON, G.WOLF, T.R.WYATT, S.YAMASHITA, D. ZER-ZION, and L. ZIVKOVIC
Subjects: Physics, Quark, Particle physics, Missing energy, Physics and Astronomy (miscellaneous), 010308 nuclear & particles physics, Scalar (mathematics), High Energy Physics::Phenomenology, FOS: Physical sciences, Fermion, 01 natural sciences, Lightest Supersymmetric Particle, Standard Model, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Double beta decay, R-parity, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Engineering (miscellaneous), Particle Physics - Experiment, Particle Physics - Phenomenology, Minimal Supersymmetric Standard Model, Lepton
Abstract: A search for pair-produced scalar fermions under the assumption that R-parity is not conserved has been performed using data collected with the OPAL detector at LEP. The data samples analysed correspond to an integrated luminosity of about 610 pb-1 collected at centre-of-mass energies of sqrt(s) 189-209 GeV. An important consequence of R-parity violation is that the lightest supersymmetric particle is expected to be unstable. Searches of R-parity violating decays of charged sleptons, sneutrinos and squarks have been performed under the assumptions that the lightest supersymmetric particle decays promptly and that only one of the R-parity violating couplings is dominant for each of the decay modes considered. Such processes would yield final states consisting of leptons, jets, or both with or without missing energy. No significant single-like excess of events has been observed with respect to the Standard Model expectations. Limits on the production cross- section of scalar fermions in R-parity violating scenarios are obtained. Constraints on the supersymmetric particle masses are also presented in an R-parity violating framework analogous to the Constrained Minimal Supersymmetric Standard Model., 51 pages, 24 figures, Submitted to Eur. Phys. J. C

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18 results on '"P.RENKEL"'

1. QCD coherence and correlations of particles with restricted momenta in hadronic Z decays

2. Search for radions at LEP2

3. Determination of the LEP beam energy using radiative fermion-pair events

4. Measurement of <tex>\alpha_{s}$</tex> with radiative hadronic events

5. Measurement of the e+e- -> W+W- cross section and W decay branching fractions at LEP

6. Bose-Einstein study of position-momentum correlations of charged pions in hadronic Z0 decays

7. Inclusive production of charged hadrons in photon-photon collisions

8. Measurement of the running of the QED coupling in small-angle Bhabha scattering at LEP

9. Determination of αS using jet rates at LEP with the OPAL detector

10. Measurement of the mass and width of the W boson

11. Measurement of the partial widths of the Z into up- and down-type quarks

12. Measurement of the Strange Spectral Function in Hadronic tau Decays

13. Search for anomalous production of di-lepton events with missing transverse momentum in <tex>e(^{+})e(^{-})$</tex> collisions at root √s=183-209 GeV

14. W Boson Polarisation at LEP2

15. Study of Z Pair Production and Anomalous Couplings in $e^+ e^-$ Collisions at $\sqrt{s}$ between 190 GeV and 209 GeV

16. Tests of models of color reconnection and a search for glueballs using gluon jets with a rapidity gap

17. Measurement of charged current triple gauge boson couplings using W pairs at LEP

18. Search for R-parity violating decays of scalar fermions at LEP

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18 results on '"P.RENKEL"'

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